B b 2 4 a c. GCSE Maths revision tutorial videoFor the full list of videos and more revision resources visit wwwmathsgeniecouk. 3 times 4 12 and 3 4 7 so a and b are equal to 3 and 4.
Give your solutions correct to 2 decimal places.
GCSE Maths revision tutorial videoFor the full list of videos and more revision resources visit wwwmathsgeniecouk. Maths revision video and notes on the topic of solving quadratic equations by factorising. Firstly the quadratic formula is. X b b 2 4 a c 2 a xdfrac -bpmsqrt b2-4ac 2a x 2 a b b 2 4 a c.